List available environments for the current repository vault.
AI agents call keyway_list_environments to retrieve information from Keyway MCP Server without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool performs a query/list operation to enumerate available environments within a repository's secrets vault. While the context mentions this is a secrets manager, this particular tool only retrieves metadata about environments (names/availability) without accessing, modifying, or executing operations on actual secrets.
From the tool's definition Tool name 'keyway_list_environments' and description 'List available environments for the current repository vault' indicate a retrieval operation with no data modification or side effects.
Attacks that exploit this kind of access
List available environments for the current repository vault. It is categorised as a Read tool in the Keyway MCP Server MCP Server, which means it retrieves data without modifying state.
Register the Keyway MCP Server MCP server in PolicyLayer and add a rule for keyway_list_environments: allow, deny, rate-limit, or require approval. Point your MCP client at the PolicyLayer proxy URL and the rule is enforced on every call, before it reaches Keyway MCP Server. Nothing to install.
keyway_list_environments is a Read tool with low risk. Read-only tools are generally safe to allow by default.
Yes. Add a rate_limit block to the keyway_list_environments rule in your PolicyLayer policy. For example, setting max: 10 and window: 60 limits the tool to 10 calls per minute. Rate limits are tracked per agent session and reset automatically.
Set action: deny in the PolicyLayer policy for keyway_list_environments. The AI agent will receive a policy violation error and cannot call the tool. You can also include a reason field to explain why the tool is blocked.
keyway_list_environments is provided by the Keyway MCP Server MCP server (keywaysh/keyway-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Every MCP server has a record like this.
Type a name, get the same breakdown: verified identity, auth posture, risk grade, capabilities, recommended policy.
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